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我想了解在Java中的RSA - 但我不明白为什么这段代码不打印“你好,世界”我试图通过生成密钥对,加密“Hello World”并解密它,确保我理解正确。我有一个时间的魔鬼搞清楚什么我做错了RSA Hello World Program ...为什么它不工作
import java.security.*;
import java.math.BigInteger;
import java.io.ObjectOutputStream;
import java.io.ObjectInputStream;
import javax.crypto.spec.*;
import java.security.spec.*;
import java.io.BufferedOutputStream;
import java.io.BufferedInputStream;
import java.io.FileOutputStream;
import java.io.FileInputStream;
import java.io.IOException;
import javax.crypto.Cipher;
public class testrsa
{
public static void main(String [] args)
{
try
{
byte[] cipherData, plainData;
KeyPairGenerator kpg = KeyPairGenerator.getInstance("RSA");
kpg.initialize(4096);
KeyPair kp = kpg.genKeyPair();
Key publicKey = kp.getPublic();
Key privateKey = kp.getPrivate();
Cipher cipher1 = Cipher.getInstance("RSA");
cipher1.init(Cipher.ENCRYPT_MODE, publicKey);
cipherData = cipher1.doFinal("Hello, Word".getBytes());
Cipher cipher2 = Cipher.getInstance("RSA");
cipher2.init(Cipher.DECRYPT_MODE, privateKey);
plainData = cipher2.doFinal(cipherData);
System.out.print(plainData.toString());
}
catch(Exception ex)
{
System.out.print(ex.toString());
}
}
}
看这里:http://stackoverflow.com/questions/13556295/rsa-encryption-in-android/13571113#13571113 – Frank
你的错误信息是什么? – Miquel